Commonly used Proxy Ports

For an introduction to Ports and Protocols, see:

Ports and Protocols

Some of the most commonly used proxy ports are:

TCP Port 80

Protocol / Name: WANRemote

Description: Standard web service port. When transferring sensitive data, port 443 is recommended as this is a vulnerable Trojan port. It should be tested to identify vulnerabilities if used, either through spyware removal programs or firewalls.

TCP Port 8000

Protocol / Name: iRDMI

Description: Not a Trojan port.

TCP Port 8080

Protocol / Name: http-alt

Description: An HTTP alternative port. It is a vulnerable Trojan port and should be tested to identify vulnerabilities if used, either through spyware removal programs or firewalls.

TCP Port 8081

Protocol / Name: blackice-logon

Description: Network Admin port for BlackIce’s intrusion detection program through its host-based firewall.

TCP Port 443

Protocol / Name: https

Description: HTTPS stands for Hyper-Text Transfer Protocol Secure. It is a secure port which uses HTTP over SSL. Information sent through this port is encrypted via the SSL protocol.

TCP Port 444

Protocol / Name: snpp

Description: Uses Simple Network Paging Protocol for data transfers. SNPP is usually used to send messages between the Internet and wireless pagers. It uses commands in order to achieve communication between a server and its client, and has several advantages over SMTP (Simple Mail Transfer Protocol), like the ability to store and forward messages if the pager is not available at the moment of transmission.

TCP Port 1080

Protocol / Name: socks

Description: A SOCKS port used for outbound TCP services, such as FTP and HTTP. As with port 80 and 8080, it is vulnerable to attacks. Attackers that connect to this port can bounce off to reach other internal hosts that are otherwise protected from direct attacks. Port scans should be made in order to listen for attempts of connection to this port.

TCP Port 2301

Protocol / Name: Cpq-wbem

Description: Compaq HTTP port. TCP Port 3128 Protocol / Name: ReverseWWWTunnel Description: Reverse WWW Tunnel Backdoor port.

TCP Port 3382

Protocol / Name: fujitsu-neat

Description: Fujitsu Net Enhanced Antitheft port.